illumination wire
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=114268
Printed Date: July 05, 2025 at 5:04 PM
Topic: illumination wire
Posted By: sjcarter7
Subject: illumination wire
Date Posted: June 06, 2009 at 11:40 AM
I just installed a new stereo into my 97 toyota 4runner, which had a 15pt connection harness so the 10pt one I bought did not work so I looked up the wire colors and started cutting and connecting. Well I was left with a illumination wire left over coming from the car, and one of 2 blue wires coming from my radio, the other blue wire is attached to my BLACK/ Red wire for my powered antenna. My friend told me the other blue is to be ran to my amp with I have not connected yet because I want to get the radio working before I start that headache. Anyway the problem I am having is that when I turn the car on the stereo turns on fine for a little while and then just starts flashing, then when I turn my headlights on the radio comes on fine. Why this happens I have no idea, and somehow now my turn signals are not working but the fuse is fine, I have not checked the bulbs yet? With my 12v tester the BLACK/ Red wire shows a -12 charge. Maybe I am supposed to tie both blue wires together and connect to my BLACK/ Red? ------------- JC
Replies:
Posted By: i am an idiot
Date Posted: June 06, 2009 at 2:59 PM
Did you forget to plug the harness back into the flasher switch?
Posted By: tommy...
Date Posted: June 06, 2009 at 3:33 PM
------------- M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!
Posted By: sjcarter7
Date Posted: June 06, 2009 at 7:08 PM
The stereo I bought was a Sony cdx-GT23w, Tommy the chart you gave me may help me with my speaker problem I did not mention, since the chart I have is diffferent from yours, but my speaker fade and balance is not even close and since your chart lists an amp location it is probably correct, so thanks. I am an idiot thanks for the response and you may have a good point however I am truely an idiot and not sure what flasher switch you are talking about, and I am not using a harness I cut that thing off and I am crimping new connections. My new stereo has 2 blue wires one solid and one with white stripe, from what I just read the white striped one should be the one connected to my BLACK/ red antenna since it is powered?
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JC
Posted By: t&t tech
Date Posted: June 06, 2009 at 7:24 PM
i think mr idiot is talking about the jack that goes in behind the hazards switch.
Posted By: sjcarter7
Date Posted: June 06, 2009 at 7:42 PM
ohhh no I have not reconnected the hazard switch, I am trying to make sure everything works right before I put my console back together, so yeah I guess that would explain the turn signal issue thanks
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JC
Posted By: tommy...
Date Posted: June 06, 2009 at 7:55 PM
I believe Blue is Power Antenna...Blue/White is Amp Turn ON! There still is a power/ground issue? Said radio flickers untill you turn on headlights...? The Yellow,Red, and Black wires off stereo are going to what in car...? Dont know if it would cause the flickering but maybe confused speaker wire and illumination?
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M.E.C.P & First-Class
Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!
Posted By: sjcarter7
Date Posted: June 06, 2009 at 8:20 PM
my real problem is why would my head lights have anything to do with anything, why does my radio just flash until I turn on my lights and then everything starts working?
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JC
Posted By: i am an idiot
Date Posted: June 06, 2009 at 8:31 PM
Have you tried using a volt meter to see which of the 2 power wires, or the ground wire is not providing the current needed for the radio to play? Meter set to DC volts. Black lead on the chassis of the radio. Red lead on the yellow wire then on the red wire of the radio. Then turn the lights on and check again. Let us know what you find out.
Posted By: sjcarter7
Date Posted: June 07, 2009 at 11:10 AM
Ok I tested the connection going into the new radio and this is what I came up with yellow=12v+, Red=12v+, Blue/white=12v-, Gray=12v-. Now it is a givin at this point I know nothing, my factory radio was a 5 disc changer and tape deck. When I pulled it out there were 2 male ends I pulled out, the bigger one which goes into the new radio BUS, this one has no charge, however the smaller one which has no where to go in the new radio shows 12v-, not sure if this has any barring on anything. When I hit the lights my WHITE/ black goes to 12v+ this goes to my purple wire of the car, which I guess means that is my illumination wire and not the green one. Still not sure how I should change things around?
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JC
Posted By: i am an idiot
Date Posted: June 07, 2009 at 11:59 AM
I am only concerned with the Yellow and Red wire of the radio. What is the voltage on those 2 wires with the lights off and then with the lights on. Black lead on the chassis of the radio when checking.
Posted By: sjcarter7
Date Posted: June 07, 2009 at 1:07 PM
Ok I tested the red and yellow, the yellow is the constant12v+ and the red is the switched 12v+. I discovered which wire was causing the charge 12v+ when I turned on the lights, the light green coming from the car so I disconnected it and taped it up. Now the problem I have is how to get the antenna working correctly, seems like the stereo comes on correct now but once I try to switch to the tunner the whole thing shuts down again and the antenna does not want to go down until I disconnect the stereo.
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JC
Posted By: sjcarter7
Date Posted: June 07, 2009 at 3:12 PM
Ok I think I got all the power and antenna issues corrected, the radio comes on right and the antenna goes up and down correct, for some reason now I don't have any sound? To get the antenna to work I have the blue from the aftermarket radio going to my RED / black wire which should be my antenna trigger. Then I got the blue/white from the radio connected to a male end similar to the antenna lead that is coming from the car which has a 12v- charge this was part of the two cables plugged into the back of my factory stereo, this one was going to be left over for some reason so I just gave it a shot and the antenna works fine now and the radio is no longer flashing. At this point I am left with 3 wires coming from my car purple=illumination wire, light green=don't know but has a switch 12v- charge, and a regular green=speaker wire. So does anyone know of a diagram which would make this scenario corect so I can get my speakers wired up correct, the light green wire is really blowing my mind, it worked in making the antenna go down when I tried it but the radio would cut off and flash. All I have is a basic volt meter you get when you buy an installation turns red for + and blue for - kit so I am not sure how I can send power through wires to make my speaker make noise to figure things out that way, plus my speakers are covered and I really would prefer to keep them that way. I think I am almost there thanks for everyone's response.
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JC
Posted By: i am an idiot
Date Posted: June 07, 2009 at 3:35 PM
There is a factory amp in that vehicle. The Blue/White wire of your deck needs to be connected to the wire that turns the amp on. If you are using a harness it should be blue or blue/white. If you are not using a harness, I have no idea what color the wire will be.
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